Basic HTML version of Foils prepared March 15 00

Foil 21 Basic Multigrid Ideas

From Collection of Extra Foils for CPS615 PDE Iterative Solution Discussion CPS615 Spring Semester 00 -- March 00. by Geoffrey C. Fox
1 In picture, relax is application of standard iteration scheme to "solve" short wavelength solution at a given level i.e. use Jacobi, Gauss-Seidel, Conjugate Gradient
2 Interpolation is taking a solution at a coarser grid and interpolating to find a solution at half the grid size
3 Restriction is taking solution at given grid and averaging to find solution at coarser grid
4 Interpolate
5 Restrict
in Table To:

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